Keys, doors and windows21Key with foldaway key section
Press button to extend. To fold the
key, first press the button.
Radio remote control
Enables operation of the following
functions via the use of the remote control buttons:
● central locking system 3 24
● anti-theft locking system 3 30
● anti-theft alarm system 3 30
The radio remote control has a range of approx. 30 metres. It can be
restricted by external influences. The
hazard warning flashers confirm
operation.
Handle with care, protect from
moisture and high temperatures and
avoid unnecessary operation.
Radio remote control battery
replacement
Replace the battery as soon as the
range reduces.
Batteries do not belong in household
waste. They must be disposed of at
an appropriate recycling collection
point.
22Keys, doors and windowsExtend the key and open the unit.
Replace the battery (battery type
CR 2032), paying attention to the
installation position. Close the unit
and synchronise.
Radio remote control
synchronisation
After replacing the battery, unlock the
door with the key in the driver's door
lock. The radio remote control is
synchronised when the ignition is
switched on.
Fault
If the central locking system cannot
be operated with the radio remote
control, it may be due to the following:
● The range is exceeded.
● The battery voltage is too low.
● Frequent, repeated operation of the radio remote control while notin range, which will require re-
synchronisation.● Overload of the central locking system by operating at frequent
intervals, the power supply is
interrupted for a short time.
● Interference from higher-power radio waves from other sources.
Electronic key system
Enables a keyless operation of the
following functions:
● central locking system 3 24
● starting the engine 3 137
The electronic key simply needs to be on the driver's person.
Additionally, the electronic key
includes the functionality of the radio
remote control 3 21.
Handle with care, protect from
moisture and high temperatures and
avoid unnecessary operation.
Note
Do not put the electronic key in the
load compartment or in front of the
Info-Display.
Replacing battery in electronic
key
Replace the battery as soon as the
system no longer operates properly
or the range is reduced. The need for battery replacement is indicated by a
message in the Driver Information
Centre 3 103.
Keys, doors and windows23Batteries do not belong in household
waste. They must be disposed of at
an appropriate recycling collection
point.
To replace:
1. Press button at the back of the electronic key unit and extract thekey blade from the housing.
2. Insert the key blade approx. 6 mm
into the housing and turn the key
to open the housing. Further
insertion of the key blade can
damage the housing.
3. Remove and replace battery. Use
CR 2032 or equivalent battery.
Pay attention to the installation
position.
4. Close the housing and insert key blade.
Batteries do not belong in household
waste. They must be disposed of at
an appropriate recycling collection
point.
Electronic key synchronisation
The electronic key synchronises itself automatically during every starting
procedure.
Fault
If the central locking cannot be
operated or the engine cannot be
started, the cause may be one of the
following:
● Fault in electronic key.
● Electronic key is out of reception range.
● The battery voltage is too low.
● Overload of the central locking system by operating at frequent
intervals, the power supply is
interrupted for a short time.
● Interference from higher-power radio waves from other sources.
To rectify the cause of the fault,
change the position of the electronic
key.
Manual unlocking 3 24.
Keys, doors and windows27Confirmation
Operation of central locking system is
confirmed by the hazard warning
flashers. A precondition is that the
setting is activated in the vehicle
personalisation 3 105.
Central locking buttons
Locks or unlocks all doors, the load
compartment and fuel filler flap from
the passenger compartment via a
switch in the driver's door panel.
Press e to lock.
Press c to unlock.
Operation with the key in case of
a central locking system fault
In case of a fault, e.g. vehicle battery
or remote control/electronic key
battery is discharged, the driver's
door can be locked or unlocked with
the mechanical key.
Manual unlocking
Manually unlock the driver's door by
inserting and turning the key in the
lock cylinder.
The other doors can be opened by
pulling the interior handle twice or by
pressing c in the driver's door panel.
The load compartment and fuel filler
flap will possibly not be unlocked.
By switching on the ignition, the anti-
theft locking system is deactivated.
Manual locking
Push inside locking knob of all doors
except driver's door or press e in the
driver's door panel. Then close the driver's door and lock it from the
outside by turning the key in the lock
cylinder. The fuel filler flap and
tailgate are possibly not locked.
Delayed locking
This feature will delay the actual
locking of the doors and arming of the
anti-theft alarm system for
five seconds when the power door
lock switch or radio remote control is
used to lock the vehicle.
This can be changed in the vehicle
settings.
Vehicle personalisation 3 105.
36Keys, doors and windowsChild safety system for rear
windows
Press z to deactivate rear power
windows.
To activate, press z again.
Overload
If the windows are repeatedly
operated within short intervals, the
window operation is disabled for
some time.
Initialising the power windows
If the windows cannot be closed
automatically (e.g. after
disconnecting the vehicle battery),
activate the window electronics as
follows:
1. Close doors.
2. Switch on ignition.
3. Pull switch until the window is closed and keep pulling for
additional two seconds.
4. Repeat for each window.
Heated rear window
Operated by pressing Ü.
The LED in the button indicates
activation.
Heating works with the engine
running and is switched off
automatically after a short time.
Sun visors The sun visors can be folded down or
swivelled to the side to prevent
dazzling.
The sun visors mirror covers should
be closed when driving.
If the sun visors have a vanity mirror
lamp, the lamp will illuminate when
opening the vanity mirror cover.
76Instruments and controlsInstruments and
controlsControls ....................................... 77
Steering wheel adjustment ........77
Steering wheel controls .............77
Heated steering wheel ...............77
Horn ........................................... 78
Windscreen wiper/washer .........78
Rear window wiper/washer .......80
Outside temperature ..................80
Clock ......................................... 81
Power outlets ............................. 83
Warning lights, gauges and indi‐ cators ........................................... 84
Speedometer ............................. 84
Odometer .................................. 84
Trip odometer ............................ 84
Tachometer ............................... 85
Fuel gauge ................................ 85
Fuel selector .............................. 86
Engine coolant temperature gauge ....................................... 86
Service display .......................... 87
Control indicators ......................87
Turn signal ................................. 91
Seat belt reminder .....................92Airbag and belt tensioners .........92
Airbag deactivation ....................93
Charging system .......................93
Malfunction indicator light ..........93
Brake and clutch system ...........93
Antilock brake system (ABS) .....93
Gear shifting .............................. 94
Descent control system .............94
Lane departure warning ............94
Electronic Stability Control off ...94
Electronic Stability Control and Traction Control system ...........94
Traction Control system off .......94
Preheating ................................. 94
Tyre pressure monitoring system ...................................... 95
Engine oil pressure ....................95
Low fuel ..................................... 95
Immobiliser ................................ 95
Exterior light .............................. 96
High beam ................................. 96
High beam assist .......................96
Adaptive forward lighting ...........96
Fog light ..................................... 96
Rear fog light ............................. 96
Cruise control ............................ 96
Vehicle detected ahead .............96
Speed limiter ............................. 96
Traffic sign assistant ..................97
Door open .................................. 97Information displays.....................97
Driver Information Centre ..........97
Info display .............................. 101
Vehicle messages ......................103
Warning chimes .......................104
Battery voltage ........................ 104
Vehicle personalisation ..............105
Telematics service .....................109
OnStar ..................................... 109
ERA GLONASS .......................113
Instruments and controls83Power outlets
A 12 Volt power outlet is located in the
front console behind the cover. To
open, push the button.
A further 12 Volt power outlet may be
located in the rear centre console.
Do not exceed the maximum power
consumption of 120 watts.
Depending on equipment, a 230 Volt
power outlet is located in the rear
centre console.
Do not exceed the maximum power
consumption of 150 watts.
With ignition off the power outlet is
deactivated.
Additionally the power outlet is
deactivated in the event of low battery
voltage.
Electrical accessories that are
connected must comply with the
electromagnetic compatibility
requirements laid down in
DIN VDE 40 839.
Caution
Do not connect any current
delivering accessories, e.g.
electrical charging devices or
batteries.
Do not damage the outlets by
using unsuitable plugs.
Instruments and controls939Warning
Have the cause of the fault
remedied immediately by a
workshop.
Belt pretensioners, airbag system
3 44, 3 47.
Airbag deactivation
V illuminates yellow.
The front passenger airbag is
activated.
* illuminates yellow.
The front passenger airbag is
deactivated 3 52.
9 Danger
Risk of fatal injury for a child using
a child restraint system together
with activated front passenger
airbag.
Risk of fatal injury for an adult
person with deactivated front
passenger airbag.
Charging system
p illuminates red.
Illuminates when the ignition is
switched on and extinguishes shortly
after the engine starts.
Illuminates when the engine is
running
Stop, switch off engine. Battery is not
charging. Engine cooling may be
interrupted. The brake servo unit may cease to be effective. Seek the
assistance of a workshop.
Malfunction indicator light
Z illuminates or flashes yellow.
Illuminates when the ignition is
switched on and extinguishes shortly
after the engine starts.
Illuminates when the engine is
running
Fault in the emission control system.The permitted emission limits may be
exceeded. Seek the assistance of a
workshop immediately.Flashes when the engine is
running
Fault that could lead to catalytic converter damage. Ease up on the
accelerator until the flashing stops.
Seek the assistance of a workshop
immediately.
Brake and clutch system
R illuminates red.
The brake and clutch fluid level is too low, when manual parking brake is
not applied 3 182.9 Warning
Stop. Do not continue your
journey. Consult a workshop.
Illuminates when the manual parking
brake is applied and ignition is
switched on 3 148.
Antilock brake system (ABS)
u illuminates yellow.